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Posted By: Fazil Member Level: Silver Posted Date: 02 Feb 2008
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2006 Calicut University B.Tech Electronics and Communication IMAGE PROCESSING Question paper
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EIGHTH SEMESTER B.TECH. (ENGINEERING) DEGREE
EXAMINATION, JUNE 2006
EC 2K 805 D--IMAGE PROCESSING
Time : Three Hours
Answer all questions.
Maximum : 100 Marks
Part A
1. (a) Explain what is meant by point spread function.
(b) Explain what is meant by modulation transfer function.
(c) Explain what is meant by luminance and brigthness.
(d) Explain briefly about image sampling.
(e) State the properties of 2-D DFT
(f) Explain the properties of median filtering.
(g) Explain what is meant by pseudoinverse filtering.
(h) What is Pixel coding ? Explain.
Part B
2. (a) Draw the block diagram of basic image processing system and explain function of each block
in detail.
Or
(b) Define 2-D Four-er transform and explain its properties.
3. (a) Draw the block diagram of monochrome vision model and explain in detail with frequency
response.(9 marks)
ii Explain co'.vur matching using three primary sources. (6 marks
Or
(b) (i)Explain the limitations of practical sampling and reconstruction systems. (8 marks)
ii) Explain what is meant by optimal sampling of random images. (7 marks)
4. (a) Explain how discrete cosine transform of an image can be computed using DFT.
Or
(b) Discuss the various point operations performed for image enhancement.
5. (a) Explain the image restoration scheme using inverse filtering. What are its limitations ?
Or
(b) Explain in detail the transform coding technique with neat block diagram.
[15*4=60]
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